I was happy to find that CloudNinjas had HP iLO4 Advanced Server Licenses, as I was unable to try to get one from HP directly without a lot of hassle. I purchased a HP Proliant DL380 Gen9 server from another vendor, and it did not include iLO license.
CloudNinjas was able to provide the license over a holiday weekend, making managment of my server from remote location possible. Thanks guys!